To reach Wilmington Porter Reservoir, De in this distance one would set out from Aberporth bearing 285.5° or WNW and follow the great circles arc to approach Wilmington Porter Reservoir, De bearing 230.5&deg or SW .

Wilmington Porter Reservoir, De has a humid subtropical climate (Cfa) whereas Aberporth has a marine west coast climate (Cfb).

The annual average temperature is 2.5 °C (4.5°F) warmer.

Average monthly temperatures vary by 14.7 °C (26.5°F) more in Wilmington Porter Reservoir, De. The continentality subtype is subcontinental as opposed to barely hyperoceanic.

Total annual precipitation averages 333.9 mm (13.1 in) more which is equivalent to 333.9 l/m² (8.19 US gal/ft²) or 3,339,000 l/ha (356,961 US gal/ac) more. About 1 2/5 as much.

The altitude of the sun at midday is overall 12.1° higher in Wilmington Porter Reservoir, De than in Aberporth.